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Removed dependence on eoUniform, changed it to use rng.random or rng.uniform directly

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mac 2000-06-10 13:22:53 +00:00
commit c1b0a6c503
14 changed files with 446 additions and 313 deletions
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104
eo/src/eoRandomSelect.h
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@ -1,7 +1,10 @@
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
//-----------------------------------------------------------------------------
// eoRandomSelect.h
// eoRandomSelect.h
// (c) GeNeura Team, 1998
/*
This library is free software; you can redistribute it and/or
@ -28,16 +31,18 @@
//-----------------------------------------------------------------------------
#include <algorithm>
#include <numeric> // for accumulate
#include <numeric> // for accumulate
#include <functional>
#include <eoPopOps.h>
#include <eoUniform.h>
#include <utils/eoRNG.h>
//-----------------------------------------------------------------------------
/**
* eoRandomSelect: an selection operator, which selects randomly a percentage
* eoRandomSelect: an selection operator, which selects randomly a percentage
of the initial population.
*/
template<class EOT> class eoRandomSelect: public eoBinPopOp<EOT>
@ -53,41 +58,68 @@ template<class EOT> class eoRandomSelect: public eoBinPopOp<EOT>
/// Takes a percentage of the population randomly, and transfers it to siblings
virtual void operator() ( eoPop<EOT>& _parents, eoPop<EOT>& _siblings ) {
// generates random numbers
eoUniform<unsigned> uniform(0, _parents.size()-1);
unsigned num_chroms = (unsigned)(repRate * _parents.size());
// selection of chromosomes
do {
_siblings.push_back(_parents[uniform()]);
_siblings.push_back(_parents[rng.random(_parents.size())]);
} while (_siblings.size() < num_chroms);
}
/// @name Methods from eoObject
//@{
/**
* Read object. Reads the percentage
* Should call base class, just in case.
* @param _s A istream.
*/
virtual void readFrom(istream& _s) {
_s >> repRate;
}
/** Print itself: inherited from eoObject implementation. Declared virtual so that
it can be reimplemented anywhere. Instance from base classes are processed in
base classes, so you don´t have to worry about, for instance, fitness.
@param _s the ostream in which things are written*/
virtual void printOn( ostream& _s ) const{
_s << repRate;
}
/** Inherited from eoObject
@see eoObject
*/
string className() const {return "eoRandomSelect";};
//@}
}
/// @name Methods from eoObject
//@{
/**
* Read object. Reads the percentage
* Should call base class, just in case.
* @param _s A istream.
*/
virtual void readFrom(istream& _s) {
_s >> repRate;
}
/** Print itself: inherited from eoObject implementation. Declared virtual so that
it can be reimplemented anywhere. Instance from base classes are processed in
base classes, so you don´t have to worry about, for instance, fitness.
@param _s the ostream in which things are written*/
virtual void printOn( ostream& _s ) const{
_s << repRate;
}
/** Inherited from eoObject
@see eoObject
*/
string className() const {return "eoRandomSelect";};
//@}
private:
float repRate;